feat: Add Tailwind CSS and UI components

- Updated project to use Tailwind CSS for styling.
- Added new UI components including Navbar, Sidebar, Footer,
  Accordion, and Button.
- Created markdown content page for documentation.
- Improved overall structure and design of the application.

sweb/vite.config.ts

@@ -1,7 +1,13 @@
 import { defineConfig } from 'vite'
 import { svelte } from '@sveltejs/vite-plugin-svelte'
+import { resolve } from 'path'
 
 // https://vite.dev/config/
 export default defineConfig({
   plugins: [svelte()],
+  resolve: {
+    alias: {
+      $lib: resolve('./src/lib')
+    }
+  }
 })